A Phillips man wanted for allegedly sexually assaulting two children was on the run in Pennsylvania for more than a month, but turned himself in the Franklin County detectives late Thursday, officials said.

William W. Sylvester, 40, was arrested on a warrant for two charges of class A gross sexual assault, according to Lt. David St. Laurent, of the Franklin County Sheriff’s Department.

St. Laurent said the two children knew Sylvester before the offenses, which allegedly occurred in the winter of 2013.

“He was a known acquaintance,” said St. Laurent.

St. Laurent said about a month and a half ago, while he and Deputy Kevin Hartley were investigating the reported sexual assaults, Sylvester disappeared. He said police confirmed Sylvester fled to Pennsylvania, where he is originally from.

A Maine warrant was issued for Sylvester’s arrest. St. Laurent said they are not sure exactly when Sylvester returned to Maine. He said Sylvester was aware that the police were searching for him, and turned himself in to Deputy Sandy Burke on Thursday.

As of Friday afternoon, Sylvester remained in jail on a $10,000 cash bail.

Kaitlin Schroeder — 861-9252

[email protected]

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